Glassell is a surname. Notable people with the surname include:
Alfred C. Glassell Jr. (1913–2008), American businessman, philanthropist and sport fisherman Andrew Glassell (1827–1901), American real estate attorney and investor Susan Thornton Glassell (1835–1883), the wife of George Smith Patton and George H. Smith, and the sister of Andrew Glassell William T. Glassell (1831–1879), officer in the Confederate States Navy during the American Civil War
See also Glassell Park, Los Angeles, neighborhood in northeast Los Angeles, California Glassell Park Elementary School, elementary school listed on the National Register of Historic Places Glassel railway station, Aberdeenshire